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Finding the Third Proportional to 106.75 and 234.50

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Solution

The third proportional to 106.75 and 234.50 is: 515.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    106.75 : 234.50 = 234.50 : x
  2. Step 2: Convert to fraction form
    106.75/234.50 = 234.50/x
  3. Step 3: Cross multiply
    106.75x = 234.50 × 234.50
  4. Step 4: Simplify right side
    106.75x = 54,990.25
  5. Step 5: Solve for x
    x = 54,990.25/106.75
  6. Step 6: Final answer
    x = 515.13

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.